Lock.



N. TRIANTAFILU.

LOOK.

APPLICATION FILED APR. 12, 1910.

Patnted Mar. 14, 1911.

rnt NORRIS PETERS c0., WASHING NICHOLAS TRIANTAFILU, OF NEW BRITAIN,CONNECTICUT.

LOCK.

osaeev.

Specification of Letters Patent.

Application filed April 12, 1910.

Patented Mar. 14, 1911. Serial No. 555,000.

aZZ whom it may concern:

Be it known that I, NICHOLAS TRIANTA- rILU, a citizen of Greece,residing in New Britain, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements in Locks,of which the following is a specification.

My invention relates to improvements in looks, and the objects of myimprovements are simplicity and economy in construction and convenienceand efficiency in use.

In the accompanying drawing :Figure 1 is a side view of my lock with theswinging arm closed. Fig. 2 is a plan view of the same. Fig. 3 is acentral longitudinal section of the same, certain parts being shown inside elevation. Fig. 4 is a plan view of my lock, with the swinging armopen, and the apron removed. Fig. 5 is an end View of my lock. Fig. 6 isa side view of my keeper. Fig. 7 is a front view of the same.

A is the body of my lock and comprises a longitudinal passage 10 at therear which for the greater part of its length is a fit for andoperatively receives a bolt B which may be projected forward so that itsouter end or nose 11 will project outward so as to overhang thecorresponding nose end 12 of the body A and be in position to engagewith a keeper C and in opposition to a spring D located at the oppositeend of the said passage 10 by means of a swinging arm E having a handleor knob 13, or which may be retracted by the said spring and housedwithin the body A, and free from the said keeper C. The said swingingarm or door E is pivotally mounted in the said body A by two lateralpivots 14, one on each side and appreciably inward from the said noseend 12, the said pivots being located in side walls 16 of the said bodyA. The said swinging arm E when in closed position generally fills anapproximately square opening 17 in the body A, between the said nose end12 and the operating end 18 remote from the said nose end 12.

As shown in the closed position in Fig. 2 the main body portion 19 andhandle or knob 13 of the arm E are at the left ofthe pivots 14 and noseend 12 and a tail 20 at the end of said arm E on the side of the pivots14 remote from the said main body portion 19 projects toward the saidnose end, and maybe covered or concealed by the cover J. The said tail20 has a pivotal connection 22 with one end of a strap F the other endof which is connected with the inner end 23 of the said bolt Bessentially at the junction 24 of the same and the spring D and travelslongitudinally with the same. Accordingly, the tendency of the saidspring D is to retract the bolt B and at the same time to swing or tiltthe said arm E on its pivots 14 so as to assume a position essentiallyperpendicular to the general body A, as shown by dotted l nes Fig. 3 thelimiting means for the position being the knob 13 in engagement with thesaid cover J.

The inward end of the body portion 19 of the arm E has two recesses 26and 30 extending away from the end face 25 which serve as keepers forlongitudinally reciprocating bolts adapted to hold the said arm E withinits receiving space 17 in the body A 111 opposition to the said springD, one 26 of the said recesses engaging with a bolt 27 of a spring latchG, actuated by a spring 28 and a handle 29 and the other recess 30engaging with a bolt 31 of a key operated lock mechanism H, operated bya key I. As described, the said arm E may be held in the closed positionin opposition to the spring D by either the spring latch G or the keyoperated lock mechanism or auxiliary lock H, or both, and in whichposition the bolt B will be in position for engagement with a keeper C.Furthermore, the withdrawal of the said bolt B is always accompanied bythe opening of the said arm E, which with the lock in position on thefront of a door would be conspicuous and prominent and would serve as awarning and sign that the door was unlocked. The operator wouldaccordingly close the same either in a latched condition by utilizingthe latch G or in the full locked position by means of the saidauxiliary lock H, as desired. The said key lock mechanism or auxiliarylock H is shown as of elementary character, and in place of the same anauxiliary lock may be employed of the most approved and reliablecharacter. The mechanism end 18 of the said body A is chambered forhousing the said latch G and auxiliary lock H and has adjacent the arm Ea partition wall 33 that is pierced to admit and guide the bolts 27 and31, and is closed on the front by the cover J having a slot 34 for thelatch knob 29 and key hole 35 for the key I. The back 36 of the body Ais entirely closed.

As described, my lock is not operative on the back side by means of akey or in any other Way, the back 36 as stated being entirely closed. 1

In order'to permit opening and closing the door from theback side whenthe lock is in normal position on a door and operative by means of a keyfrom the front side and the bolt is in position for engagement With thekeeper, I make the keeper C of essentially springlatch construction,comprising an open bolt slot 37 in a sliding spring actuated keeper 88,sliding longitudinally in a slot 39 in a body or frame 40, as shown, themovement being vertical. The keeper 38 is projected normally to theengaging position by a spring 41 so that the nose 42 forming the outerWall of the bolt slot 37 may engage With the said bolt B and may beretracted from such engaging position by means ofa handle 43;

lock on said body and adapted to engage with the said door and lock thesame closed. 2. In a lock ,mechanism comprising a I body, a bolt, a doormounted in said body by pivots intermediate its ends, connected by oneend to said bolt and having an operating handle adjacent the other end,a spring housed in said body and tending to retract the said bolt and toopen said door, the said handle serving as a'means of closing said doorand projecting the said bolt in opposition to the said spring, and alock adapted to engage With the said door and lock the same closed andthe bolt projected.

3. In a lock having a front Wall, an opening in said Wall, a doorpivotally mounted, normally fitting the said opening and adapted toswingoutwardly so as to expose said opening, a handle on the front face ofsaid door and adapted as a stop to limit the amount of opening of thesaid door, a bolt connected to said door and adapted to be projected andretracted by the closing and opening of the said door, a spring tendingto open said door and retract said bolt, and key'operated lockingmechanism adapted to lock said door in the closed position.

NICHOLAS TRIANTAFILU. Witnesses: V

ELLIS JAMES, SHErr IELn H, CLARKE.-

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, 1). 0.,

